Newsgroups: comp.parallel
From: ruthc@sharra.demon.co.uk (Ruth Ivimey-Cook)
Subject: Re: Mach multiprocessing ?
Organization: At Home
Date: 11 Jun 1998 11:00:07 GMT
Message-ID: <6lodbn$9op$1@encore.ece.cmu.edu>

On 22 May 1998 13:05:55 GMT, Hugo Varotto <hvarotto@gomez.cs.pitt.edu>
wrote:
>Linux ( to see if I can steal, err... borrow some ideas from it ). The
>purpose of this project is to have a real-time multiprocessor
>operating system to test some fault-tolerant algorithms. 

Hugo,

I can't help wondering why you want a fault tolerant system implemented on
an SMP computer. Surely the nature of any SMP computer is such that almost
any fault in the operation of one processor will bring down the others as
well.

Wouldn't it be better to look at disttributed memory processor systems
instead? At least there the options exist for a system to reover even from
multi-point hardware failure. A paper on such fault tolerant computers was
published in the WoTUG 21 conference proceedings this Easter on designing a
computer suitable for satellites.

Regards,

Ruth

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